Body cavity interior observing apparatus

Abstract

According to a body cavity interior observing apparatus of the present invention, a non-tracked region to be displayed can be switched between a first non-tracked region and a second non-tracked region which is larger than the first non-tracked region, and in a search for an affected area in which it is preferable to track a treating instrument in order to consistently align the position of treating instrument to the central part of the screen, the first non-tracked region having a smaller non-tracked region is selected, while in a treatment of an affected area in which a treating instrument is moved in a wide range of area, the second non-tracked region having a larger non-tracked region is selected, thereby an appropriate monitor screen can be provided in searching for an affected area and in treating an affected area.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a system configuration diagram of a body cavity interior observing apparatus having an observation unit which integrally includes an observation optical system therein;

FIG. 2 is a diagram illustrating a clinical situation using the body cavity interior observing apparatus of FIG. 1;

FIG. 3 is a block diagram showing a structure of the body cavity interior observing apparatus of FIG. 1;

FIG. 4 is a diagram showing a green color region based on a set threshold parameter;

FIG. 5 is a diagram showing a yellow color region based on a set threshold parameter;

FIG. 6 is a diagram illustrating a monitor screen which shows a first non-tracked region having a smaller non-tracked region; and

FIG. 7 is a diagram illustrating a monitor screen which shows a second non-tracked region having a larger non-tracked region.

Claims

1. A body cavity interior observing apparatus, comprising: a treating instrument which is inserted into a body cavity interior of an object to be examined by using a penetrating instrument as a guide;an observing section which is mounted to an opening portion of a body wall of the object;a monitor which displays an image of the body cavity interior picked up by the observing section;a marker position detecting device for detecting a position of a marker attached to the treating instrument or the penetrating instrument from the image which shows the body cavity interior picked up by the observing section; anda tracking device for tracking the position of the marker detected by the marker position detecting device to align the position of the marker to a central part of a screen of the monitor,wherein a screen of the monitor is divided into a tracked region and a non-tracked region, andwhen the marker is located in the non-tracked region, the tracking device does not work, andthe non-tracked region to be displayed is switched between a first non-tracked region which is positioned generally at the central part of the screen of the monitor and a second non-tracked region which is larger than the first non-tracked region.

2. The body cavity interior observing apparatus according to claim 1, wherein the tracking device includes: a trimming device for trimming an image to obtain a predetermined region so that the position of the marker which is detected by the marker position detecting device is positioned at the central part of the screen of the monitor; anda magnifying device for magnifying the predetermined region trimmed by the trimming device at a predetermined magnification rate to be displayed on the monitor.